Improvement in rotary stoves by adding an oven thereto



R. n. GRANGER.

Cooking Stove.

' N0. 282. I Patented, July 17, 1837.

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Nt-TED STATES PATENT F rrca RENSSELAER D. GRANGER, OF TROY, NEW YORK.

IMPROVEMENT lN ROTARY STOVES BY ADDING AN OVEN THERETO.

Specification forming part of Letters Patent N0. 282, dated July 17, 1837.

. ing is a full and exact description-thereotl The drawing represents the ordinary rotary stove with my improvement thereon.

The top or revolving plate, A, has a tube or collar passing through a hole in its center to receive the pipe B, which tube or-collar is firmly attached to the lower plate, but is open onone or more sides within the chamber, be-

tween the two plates, to admit the heated air to pass into it and into the pipe B, which fits onto it. The top A revolves freely round the tube or collar. A second pipe, 0, rises from the diviug-fiue'at the back ot'the stove in the ordinary way, and both these pipes enter the bottom plate of an oven, 1), which Iusually make of sheet-iron. This oven is composed of double plates at its top, bottom, and ends, forming tlues which surround it, excepting at the sides, where the doors are situated. When this oven is to be used for baking, a valve, E,

in the pipe B is left open. The principal part of the heated air from the fire will then pass up thispipe and through the flues above and below the oven, escaping eventually through a pipe from F into a chimney. Sometimes I put avalve into the pipe 0 and dampers or valves into the flues above and below the oven; but in general I omit these, having found the valve in the pipe B suflicient, and therefore to be preferred on account of its simplicity. The oven 1) is elevated by means of the pipes B and O to such a height as to allow the boilers to pass under it, and as thetube or collar leading to the pipe B might otherwise interfere with the use of a'boiler of large size without increasing the diameter of the top, I make a swell, G, in the periphery of the rotary top to admit such a boiler.

Having thus fully described my said improvement and shown what I believe to be the tnost convenient mode of carrying the same into operation, I wish it to be understoodthat I do not intend to confine myself to the precise manner of constructing the same herein presented. There may, for example, be two diving-fines, each furnished with a pipe like that marked 0, and leading into the flue of an oven constructed like D, by which a like end would be attained, but in a manner less v convenient than that above described.

What I claim as my improvementis- 1. The conveying-the heated air from the fuel through two or more pipes into an oven elevated above the main body of a rotary stove, allowing the boilers to pass underit, and operating substantially upon the principle herein set forth.

The formation of the swell or curve extending be 0nd the periphery of the rotary top, for the purpose of giving, room to a large boiler, either when a center tube or'collar is employed or when it is desired to obtain room in the ordinary rotary stove in which my oven is not used. Y

RENSSELAER I). GRANGER.

Witnesses:

THos. P. Jones, 'Lnvr Bron. 

